Neil mclean



(No Model.) N. MGLEAN.

yREVERSIBLE PLOW. y No. 364,362. Patent-ed June 7, 1887.

Il. PZYERS, PMloUlhorapher, Wnlinibn. D. C.

UNITED STATES PATENT OFFICE.

NEIL MCLEAN, OF VATSONVILLE, CALIFORNIA.

REVERSIBLE PLOW.

SPECIFICATION forming part of Letters Patent No. 364,362, dated (fune 7,1887.

Application filed MnrchfO, 18h17. Serial No. 233,062. (No model.)

.To @ZZ whom it may concern:

Be itknown that I, NEIL MCLEAN, of Tatsonville, Santa Cruz county, StateofCalifornia, have invented an Improven'ient in Reversible Plows; and Ihereby declare the following to be a full, clear, and exact descriptionof the same.

Myinventionrelatesto certainimprovements V in plows, and it is moreespecially applicable to a plow for w-hich a patent was issued to meJuly 20, 1886, No. 345,797, in which a hinged swinging mold-board isiitted vto two plowshares which face in opposite directions from asingle standard, said mldboard being adjustable, so as to form acontinuation of either ofthe shares,while the beam is allowed to swingabout the standard as a vertical axis to point in either direction.

My present iiiventionhas for its object such a construction oftheframework and the shares that either one may be removed when desired touse the plow as a single plow only, and a short supplemental landsidemay be put onV in place of the one removed.

It also relates to certain improvements in the device for holding andlocking the beam, as will be more fully described by reference to theaccompanying drawings, in which- Figure l is a view of the plow, showinga device for locking the beam. Fig. 2 is .a bot tom view of the same,looking into the interior between the landside and shares.

A A are the shares of two plo ws, having a single landside extending ina straight line and serving for both the plows.

B is a moldboard formed with two wings, which unite at a central lineand are pivoted on the angular outer uniting line where the plowsharesmeet. The curve of these moldboards is such that when swung to one sideone of these wings forms a continuation of one of the shares, and thuscompletes the plow which is moving in that direction, the otherremaining idle, and when ruiming in the other direction it isswung aboutits pivot-pins or axis, so that the other wing forms a continuation andcomplete plow with the opposite mold-board.

E is the standard., the upper end of which forms a journal which extendsup through the plow-beam F, so that the beam may turn about thisjournal.

In my former patent I show a lever and a notchedV circle, by which thebeam may be held after having been turned around from one side to theother; but the objection to this device is, that there is no adjustmentof the beam and some lost motion, and in order to overcome it I havedevised an improved locking device which allows of moredelicateadjustmeut and a firm holding of the parts after they areadjusted. Upon the upper end ofthe standard, and just beneath the beam,is a plate, G, the edges of which form small arcs ot a circle having thestandard for a center. Clamps H project over each of these arcs, and thevertical shanks I extend up through the plowbeam and are pivoted in thecams or eccentric heads J. These heads have extensions or levers K, andwhere two are used they are united by an intermediate connectingbar, L,so that they will move in unison. The one nearest the rear ot theplow-beam .is extended so as to form a handle, as shown at M, by whichthe locking cams `may be actuated. When this handle is raised, the camsor eccentrics are turned so as to loosen the clamps, and thus allow thesegments or circle to turn freely bctween them; but whenthe lever isthrown down the camsact to draw the clamps up, and thus bind the arcsfirmly enough, holding the plow in any desired position. By means oithese clamps it is possible to set the beam exactly at any desired anglewith relation to the position of the plowshares or to the landside,which would be impossible where notched holding devices are depended on.All looseness and side-play are also prevented by this device.

In order to properly support the mold-board in each of its positions, ablock is formed,against which it rests when it turns from one side tothe other. The shares are bolted to an interior frame, as shown in Figs.l and 2, and if it is desired to use the plow as a single plow, eitherof the shares maybe unbolted from the frame, so as toleave either theright or left one, as may be desired, the mold-board re maining in itsplace. Although it is not necessary to use it in more than one positionunder these conditions, still it will not be neces' sary to fasten themold-board in any way, as it will remain at the angle which adapts it tothe plowshare in use, remaining without any se stessa plow. 2. Thereversible plow having the remov- 25 Having thus described my invention,what able shares and land'sides secured to the stand- I claim as new7and desire to secure by Letters ard and interior frame7 in combinationwith a lo Patent, is supplemental landside extension to reduce the l.The reversible plow composed of the sinplow to a single plow,substantial] y as herein gle continuous landside with the double point-sdescribed. 3o

fastening of any kind. When the opposite plowshare has been removed, thelandside P at that end will be removed with it,V and a short Section, O,may be bolted 011 and form a continuation of the remaining part of thelandside, which makes the plow as a single and shares and the hingedswinging moldboard, as shown, the standard extending npward through theplow-beam and journaled therein7 with the disk or segment secured to thestandard beneath the beam, the lockingclamps embracing the edge of thesegment and having the Shanks extending up through the beam, incombination with the eccentrics or cams to which they are attached and alever by which they may be turned so as to securely hold the standard atany desired point, substantially as herein described.

In witness whereof I have hereunto set my hand.

NEIL MCLEAN.

Vitnesses XV. S. HUDELSON, HARRY PETERSEN.

